| dracunculus insignis in ferrets: comparison of inoculation routes. | three routes of inoculation were compared to determine the best method to infect ferrets with dracunculus insignis. the traditional method of administering infected cyclops containing l3s through gavage was compared to intraperitoneal (i.p.) and subcutaneous (s.c.) inoculation of l3s. ten of 18 (56%) gavaged ferrets became infected after receiving copepods containing approximately 100 l3s each; 44 adult worms were recovered from these 10 animals. twenty-one of 28 (75%) animals inoculated with 50 ... | 1990 | 2137166 |
| distribution, behavior, and course of patency of dracunculus insignis in experimentally infected ferrets. | from 106 ferrets experimentally infected with dracunculus insignis, 273 female worms and 42 male worms were recovered. the percentage of female worms that mated, the location of all worms, and the rate of emergence of gravid females were recorded. of 174 mature female worms recovered, only 11% had emerged before necropsy. eighty-one percent of the male worms and 87% of all unmated (immature) females were found on the trunk of the animal or on the skin overlying it. gravid female worms were found ... | 1990 | 2143224 |
| dracunculus insignis (leidy, 1858) and larval eustrongylides sp. in a muskrat from ontario, canada. | | 1972 | 4261033 |
| dracunculus insignis in a dog. | | 1974 | 4278063 |
| massive dracunculus insignis infection in a dog. | an 11-year-old 13-kg (28.6-lb) spayed female cocker spaniel was examined because of subcutaneous nodules on the hind limbs and ventral aspects of the thorax and abdomen. focal areas of erythema and pyoderma were associated with the nodules, and purulent exudate could be expressed from a fistula in the nodules. a nematode approximately 20.5 cm in length was isolated from a draining fistula in 1 nodule and identified as dracunculus insignis. the dog was treated with ivermectin, fenbendazole, and m ... | 1999 | 10023398 |
| aerobic and anaerobic production of lactic acid by the filarial worm, dracunculus insignis. | | 1950 | 15405469 |
| guinea-worm (dracunculus insignis, leidy 1858) infection in a dog. | | 1950 | 15436320 |
| species identification of north american guinea worms (nematoda: dracunculus) with dna barcoding. | dracunculus insignis is a nematode parasite that infects the subcutaneous tissues of mammals such as raccoon (procyon lotor), mink (neovison vison) and fisher (martes pennanti). d. lutrae, a morphologically similar species, has only been recovered from the otter (lontra canadensis). species identification of these two north american guinea worms has only been achieved by morphology of males and host identity. as a result, where only female specimens are present, accurate identifications are not ... | 2009 | 21564728 |
| first report of dracunculus insignis in two naturally infected cats from the northeastern usa. | dracunculiasis is rarely reported in cats, yet over the last few years we have identified two cats with filarioid-like spirurid infections. case 1 was a 9-year-old cat with pituitary-dependent hyperadrenocorticism from new york tate from which four adult dracunculoid nematodes were isolated from its torso. based on morphometric characteristics and parasite geographic distribution, the specimens were identified as dracunculus insignis females; at least one of the females was gravid, suggestive of ... | 2014 | 24027052 |
| nongastrointestinal helminths in marten (martes americana) from ontario, canada. | six species of nongastrointestinal nematodes were recovered from 405 marten, (martes americana), examined from six areas in ontario, canada in 1992 to 1993. three species (crenosoma petrowi, eucoleus aerophilus, filaroides martis) were found in the respiratory tract, one in the urinary bladder (pearsonema plica), one in the kidney (dioctophyme renale), and one in the musculature (trichinella sp. larvae). this is the first report of f. martis and p. plica from this host. in addition a specimen of ... | 1995 | 8592385 |
| the role of tadpoles and frogs as paratenic hosts in the life cycle of dracunculus insignis (nematoda: dracunculoidea). | the possibility exists that paratenic hosts play a role in the life cycle of various dracunculus species. in the present study, we established that tadpoles of 2 genera of frogs (xenopus and rana) were capable of ingesting copepods infected with third-stage larvae (l3) of dracunculus insignis. once ingested, the l3s migrated from the gut to the somatic tissues of the tadpoles. in xenopus, the dracunculid larvae persisted through the metamorphosis of the tadpoles into adult frogs. these observati ... | 1995 | 7472879 |
| vegetative endocarditis with generalized bacterial embolism in association with phlegmon induced by dracunculus insignis in a raccoon. | lesions of streptococcal vegetative endocarditis and subsequent embolic disease are described in a raccoon (procyon lotor). a phlegmon of the animal's forelimb associated with dracunculus insignis infestation was believed to be the primary site of bacterial invasion. | 1980 | 6448729 |
| dracunculus insignis in fishers in new hampshire. | | 1984 | 6239848 |
| helminths of the raccoon (procyon lotor) in western kentucky. | seventy raccoons (procyon lotor) from western kentucky were examined for helminths from december 1985 through may 1986. twenty-three species of helminths were collected including 10 species of trematoda (brachylaima virginiana, euryhelmis squamula, eurytrema procyonis, fibricola cratera, gyrosoma singulare, maritreminoides nettae, mesostephanus appendiculatoides, metagonimoides oregonensis, paragonimus kellicotti, pharyngostomoides procyonis), 2 species of cestoda (atriotaenia procyonis, mesoces ... | 1987 | 3625429 |
| dracunculus insignis: experimental infection in the ferret, mustela putorius furo. | the laboratory study of dracunculiasis has suffered from the lack of a suitable, readily available animal model. we have been able to experimentally infect ferrets. mustela putorius furo, with the north american dracunculid, dracunculus insignis. ferrets were inoculated with 75 to 100 infective larvae and were necropsied 90 to 240 days later. guinea worms were recovered from 10 (56%) of 18 ferrets. a total of 44 worms were recovered, for an average of 4.4 worms per infected ferret. gravid female ... | 1988 | 2973492 |
| dracunculus insignis infection in a dog. | painful, fluctuant subcutaneous swellings on the limbs of a dog were attributed to infection with dracunculus insignis. the diagnosis was obtained by finding larvae in fluid aspirated from the swellings and by identification of the adult female nematodes after they were surgically removed. six weeks after initial examination, another adult nematode was removed from the subcutaneous tissues of the thorax. although uncommon, d insignis infection should be considered in the differential diagnosis o ... | 1988 | 2963798 |
| chemoprophylactic drug trials for treatment of dracunculiasis using the dracunculus insignis-ferret model. | groups of ferrets inoculated with dracunculus insignis were treated with various anthelminthic compounds to evaluate the potential use of drugs in controlling the human parasite d. medinensis. the three primary compounds tested were diethylcarbamazine (dec), albendazole (albz), and invermectin (iver); they were administered in dosages of 60 mg/kg, 10 mg/kg, and 1 mg/kg, respectively. groups of animals received treatment either once at 60 days after inoculation, once at 60 and 90 days, or for 3 d ... | 1990 | 2143770 |
| inoculation of ferrets with ten third-stage larvae of dracunculus insignis. | infection with dracunculus insignis was established in 7 of 10 ferrets experimentally inoculated intraperitoneally with 10 third-stage larvae (l3's). worm recovery and infection rate were comparable to animals inoculated with 50 l3's. this study demonstrates that once infective larvae traverse the gut and pass into the peritoneal cavity, very few larvae are required to establish infection. | 1991 | 1833521 |
| helminth parasites of the raccoon (procyon lotor) from north-central arkansas. | twenty-three species of helminths (4 trematodes, 2 cestodes, 14 nematodes, and 3 acanthocephalans) were found in the gastrointestinal tract, lungs, pancreas, tongue, urinary bladder, and subcutaneous tissues of 30 live-trapped or hunter-shot raccoons from north-central arkansas between november 1989 and april 1990. helminths were not detected in the brain, diaphragm, gallbladder, heart, liver, reproductive system, or trachea. each raccoon examined was infected with 3 or more of the following hel ... | 1992 | 1738063 |
| diseases diagnosed in gray foxes (urocyon cinereoargenteus) from the southeastern united states. | diagnostic findings were reviewed on 157 sick or dead gray foxes (urocyon cinereoargenteus) from the southeastern united states examined during the period 1972 through 1989. most foxes (n = 118) originated from georgia; fewer animals were from florida, kentucky, maryland, mississippi, north carolina, south carolina, tennessee, virginia and west virginia. etiologic diagnoses included canine distemper (n = 125), congenital absence of guard hairs (n = 7), traumatic injuries (n = 7), rabies (n = 3), ... | 1992 | 1548799 |
| migration, growth, and morphogenesis of dracunculus insignis (nematoda: dracunculoidea). | | 1975 | 1116068 |
| observations on the seasonal prevalence, pathology and transmission of dracunculus insignis (nematoda: dracunculoidea) in the raccoon (procyon lotor (l.) in ontario. | lesions due to dracunculus insignis in the legs of raccoons (procyon lotor) in southern ontario occur seasonally as most larvigerous females emerge in the spring and early summer (april-june). the pathology of dracunculiasis in the raccoon is described and the transmission of the parasite in the wild is discussed with respect to seasonality and local agricultural practices. crayfish, fishes and frogs (including tadpoles) were given infective third-stage larvae of d. insignis to test their suitab ... | 1977 | 144196 |
| [dracunculus insignis (leidy, 1858) in a german shepherd]. | | 1975 | 124204 |
| possible role of fish as transport hosts for dracunculus spp. larvae. | to inform dracunculus medinensis (guinea worm) eradication efforts, we evaluated the role of fish as transport hosts for dracunculus worms. ferrets fed fish that had ingested infected copepods became infected, highlighting the importance of recommendations to cook fish, bury entrails, and prevent dogs from consuming raw fish and entrails. | 2017 | 28820381 |
| [the role of paratenic hosts in the life cycles of helminths]. | paratenic hosts, especially of nematodes, play a major role in spreading many parasite species. the phenomenon of "paratenic parasitism" is illustrated by examples of development of syngamus trachea and proteocephalus longicollis. moravec introduced a concept of "natural paratenic host" for p. longicollis infecting common sculpion, cottus gobio, in europe. according to kennedy, paratenic host richness of anguillicola crassus is an adaptation to new environmental conditions. new studies, involvin ... | 2008 | 19338219 |